Drawer lever mechanism

[Higha87]

Trying to build a ladder shelf but I can’t seem to disconnect the two parts of the drawer lever mechanism. It says to push the button down but it doesn’t seem to do anything with the latch.

im sure it’s human error but any Help would be really appreciated!

thanks

 

[AC Power]

Those are finicky....just keep trying. You may want to "You Tube" it.